Colour changes of Hydrangea flowers

Briefly:

As a result of the type of soil Hydrangeas are planted in, Hydrangea flowers usually change colour only once a year, from pink to blue or the other way around.
A number of Hovaria® Hydrangeas flowers change from their initial colour through green into cherry red every year. This lets you enjoy your Hovaria® Hydrangea blooms for an extra long time, after which they function very well as dried flowers.

You can make your Hovaria® Hydrangea a most beautiful red by placing the plant indoors in a window and leaving it there until the bloom becomes totally green (about 6-8 weeks). After that put it outdoors, letting it harden off first (under a garden table, for instance) to let it get used to morning and/or evening sun. Then about 6-8 weeks later you will have beautiful red flowers.

 In detail:

Hydrangea blooms change colour several ways.

Colour change as a result of the type of soil:
Under certain circumstances pink Hydrangeas can turn blue and vice versa. For extensive information, choose “Colouring blue” or “Keeping pink”.
Colour change by aging of the flowers:
There are varieties of Hydrangeas whose flowers normally bloom white, pink, red or blue every year and then slowly turn a green colour. If the flowers have become sufficiently strong and feel leathery then, you can make dried flowers of these.
There are also varieties of Hydrangeas whose flowers, after their initial bloom and then going through the green phase, turn a beautiful red colour. That gives an added dimension to these varieties, because there are more possibilities for use. This natural aging of the flowers is fascinating. Again and again Hydrangeas show something new, making them so beloved by so many.

Varieties that reliably colour red in autumn are (starting with the best red one):

Hovaria® ’Hobella’, Hovaria® ’Hopaline’ en Hovaria® ’Homigo’.

This changing of colours through green into red (see picture at the bottom) is a gradual process and depends on circumstances like light and temperature. Many years of improvement and experiments have gone into these Hovaria® varieties which now display their exciting range of colours for you year after year.

 

How can I make sure my Hovaria® Hydrangea blooms will be beautifully red in autumn?

To get the flowers of Hovaria® ’Hobella’, ’Homigo’ and ’Hopaline’ into the green phase and afterwards into cherry red, the plant needs a lot of energy. It needs a lot of growth (assimilation) to complete the changing of colour. Therefore give your Hovaria® a lot of light, but no direct sun or the flowers can burn.
When indoors, the plant should be placed in any window that does not face towards the south.
When outside, the plant needs morning and/or evening sun if it is going to have the most beautiful autumnal colours. Avoid placing the plant where it will receive direct sun between eleven in the morning and five o’clock in the afternoon. To keep the flowers in perfect condition, some protection from too much rain and wind is advisable. For instance, a place near a wall or fence or beside a shed is ideal.
The most beautiful red colouring is obtained by first placing a flowering plant indoors in a window. As soon as the flowers are totally green, about 6-8 weeks, place the plant outside under a garden table or some other place where is no direct sunlight. After the plant has hardened off for about two weeks, let it have morning and/or evening sun gradually and in a few weeks you will have a splendid, cherry red Hovaria®.

Hovaria 'Hobella' phase 3
"The Hovaria® ’Hobella’ in its red autumnal colour (phase 3)."

You can enjoy these red flowers for weeks or even months until frost sets in. Do not forget to cut a number of the flowers before the first frost.You can make dried flowers of these, and they will keep their beautiful red colour for a long time.

A floral festival for months!!
Spring, summer, autumn. With Hovaria® Hydrangeas you can have a different colour in your garden every season!!!

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Created by Koos and Wilko Hofstede Copyright© 2000-2007. All rights reserved.
Last modified: 16 November 2002